The Same, But Different
by FullDeck and Missing a Few Cards Open on SudokuPad
Heartburn
- Region sum lines
- Entropic lines
The brief
**Sudoku, Duality Lines** - Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box. - Duality Lines: Each line in the puzzle is BOTH region sum AND entropic. - Sum Line: Box borders split blue lines into sections, and the digits on those sections must sum to the same value. If a line has multiple sections within a box, these sections are summed separately. - Entropic lines: Any set of three adjacent cells along an entropic line must contain a low digit (123), a middle digit (456), and a high digit (789). For more of our puzzles, please visit https://missingdeck.net